package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.dto.SetmealDto;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.entity.SetmealDish;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.SetmealDishService;
import com.itheima.reggie.service.SetmealService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.apache.logging.log4j.util.Base64Util;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.BaseStream;
import java.util.stream.Collectors;

/**
 * 套餐管理
 */
@RestController
@Slf4j
@RequestMapping("/setmeal")
@Api(tags = "套餐相关接口")
public class SetmealController {

    @Autowired
    private SetmealService setmealService;

    @Autowired
    private SetmealDishService setmealDishService;

    @Autowired
    private CategoryService categoryService;

    @PostMapping
    @CacheEvict(value = "setmealCache",allEntries = true)
    @ApiOperation(value = "新增套餐接口")
    public R<String> save(@RequestBody SetmealDto setmealDto){

        log.info("套餐信息：{}",setmealDto);
        setmealService.saveWithDish(setmealDto);
        return R.success("套餐添加成功");

    }

    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){

        //分页构造器
        Page<Setmeal> pageInfo = new Page<>(page,pageSize);
        Page<SetmealDto> dtoPage = new Page<>();
        //根据name进行模糊查询
        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.like(name!=null,Setmeal::getName,name);
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);
        setmealService.page(pageInfo,queryWrapper);
        //对象拷贝
        BeanUtils.copyProperties(pageInfo,dtoPage,"records");
        List<Setmeal> records = pageInfo.getRecords();

        List<SetmealDto> list = records.stream().map((item) -> {
            SetmealDto setmealDto = new SetmealDto();
            BeanUtils.copyProperties(item,setmealDto);
            //分类id
            Long categoryId = item.getCategoryId();
            //根据分类id查询分类对象
            Category category = categoryService.getById(categoryId);
            if (category != null){
                //分类名称
                String categoryName = category.getName();
                setmealDto.setCategoryName(categoryName);
            }
            return setmealDto;
        }).collect(Collectors.toList());
        dtoPage.setRecords(list);
        return R.success(dtoPage);

    }

    /**
     * 单个删除或批量删除套餐
     * @param ids
     * @return
     */
    @DeleteMapping
    @CacheEvict(value = "setmealCache",allEntries = true)
    public R<String> delete(@RequestParam List<Long> ids){

        log.info("ids:{}",ids);
        setmealService.removeWithDish(ids);
        return R.success("套餐数据删除成功");

    }

    /**
     * 根据条件查询套餐数据
     * @param setmeal
     * @return
     */
    @GetMapping("/list")
    @Cacheable(value = "setmealCache",key = "#setmeal.categoryId + '_' + #setmeal.getStatus")
    public R<List<Setmeal>> list(Setmeal setmeal){
        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(setmeal.getCategoryId() != null,Setmeal::getCategoryId,setmeal.getCategoryId());
        queryWrapper.eq(setmeal.getStatus() != null,Setmeal::getStatus,setmeal.getStatus());
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);

        List<Setmeal> list = setmealService.list(queryWrapper);

        return R.success(list);
    }

    /**
     * 修改套餐数据回显
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<SetmealDto> getSetmealBackDate(@PathVariable Long id){

        //自定义数据回显方法
        SetmealDto setmealDto = setmealService.setmealBackData(id);
        return R.success(setmealDto);

    }

    /**
     * 修改套餐信息
     * @param setmealDto
     * @return
     */
    @PutMapping
    public R<String> setmealUpdate(@RequestBody SetmealDto setmealDto){

        log.info("修改后的setmealDto：{}",setmealDto);
        //自定义修改套餐方法
        setmealService.setmealUpdate(setmealDto);
        return R.success("修改成功");

    }

    /**
     * 批量修改套餐状态
     * @param ids
     * @param status
     * @return
     */
    @PostMapping("/status/{status}")
    public R<String> updateStatus(Long[] ids,@PathVariable int status){

        LambdaUpdateWrapper<Setmeal> updateWrapper = new LambdaUpdateWrapper<>();
        updateWrapper.set(Setmeal::getStatus,status)
                .in(Setmeal::getId,ids);
        setmealService.update(updateWrapper);
        return R.success("修改状态成功");
    }
}
